Hibernian v Aberdeen - Tuesday (Live on BT Sport)
- The sides drew 1-1 at Easter Road in the Ladbrokes Premiership last month
- Hibernian won 3-0 at Dundee on Saturday while the Dons defeated Motherwell 1-0
- Hibs were 2-0 winners when the teams last met in this competition in September 2015
- Aberdeen have won the League Cup on six previous occasions, most recently in 2013/14
- Hibs are three-time winners, with their last success coming in 2006/07
Heart of Midlothian v Motherwell - Wednesday
- Hearts have won the League Cup four times but not since 1962/63
- Motherwell's sole success was in 1950/51 but they were runners-up last season
- Hearts won 1-0 when the teams met in the Premiership at Fir Park recently
- Their last League Cup meeting was the 2004/05 semi-final, which Motherwell won 3-2
- Hearts are unbeaten in 11 league and cup games so far this season
Rangers v Ayr United - Wednesday
- Rangers have won this competition a record 27 times, most recently in 2010/11
- Ayr United reached the final in 2001/02 but were beaten 4-0 by Rangers
- The Honest Men are top of the Championship, with Rangers second in the Premiership
- The Ibrox side beat Ayr 6-1 in a Scottish Cup tie at Somerset Park in February of this year
- Lawrence Shankland has already scored 15 goals for Ian McCall's team this season
St Johnstone v Celtic - Wednesday (Live on BT Sport)
- Celtic are the current Betfred Cup holders and have won the tournament 17 times
- St Johnstone were runners-up in 1969/70 and 1998/99 but have never won this trophy
- Celtic won 4-0 on their last visit to McDiarmid Park in November 2017
- St Johnstone's most recent victory in this fixture was 2-1 in Perth in May 2016
- Celtic won the last League Cup encounter between the teams 5-0 at Parkhead in October 2012
